Q. What is the time limit to spend on ones family on the day of Aashura? Is it the Islamic day and night of the 10th of Muharram or is it the 9th, 10th or 10th, 11th or 9th, 10th and 11th days and nights of Muharram?
A. The day of Aashura is the 10th of Muharram. The day of Aashura is not the 9th or 11th of Muharram. Yes, in keeping the fast of Aashura, a person should keep the fast of the 10th of Muharram together with a fast before or after it to avoid enacting the practice of the Jews who fasted on the 10th of Muharram only.
However, in the case of spending on ones family of the day of Aashura, the 9th or 11th is not included. As such, the Islamic day and night of the 10th of Muharram is taken into consideration. Therefore, if one wishes to spend on his/her family on the day of Aashura and earn its rewards of expansion in sustenance throughout the year, he/she may do so from the 10th evening (Maghrib time) until the Maghrib time of the following day. (Faydul Baari 3/372)
Allah Ta’ala Knows Best
Mufti Ismaeel Bassa
This answer was collected from TheMufti.com, which is a fatwa portal managed by Mufti Ismaeel Bassa from South Africa.